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tests/thread: Test mixing async and sync task

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The expected behaivor is that the sync task will "flush" the async
tasks, i.e. to maintain task order.

Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2777>
This commit is contained in:
Jonas Ådahl 2021-06-09 15:40:35 +02:00
parent 069bee0ce8
commit 50b0d8cb18
1 changed files with 87 additions and 0 deletions
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87
src/tests/native-thread.c
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@ -330,6 +330,68 @@ multiple_async_feedback_func3 (gpointer retval,
g_main_loop_quit (async_data->loop); g_main_loop_quit (async_data->loop);
} }
typedef struct
{
MetaThread *thread;
GMutex mutex;
int state;
} MixedData;
static gpointer
mixed_async_func (MetaThreadImpl *thread_impl,
gpointer user_data,
GError **error)
{
MixedData *mixed_data = user_data;
meta_assert_in_thread_impl (mixed_data->thread);
g_mutex_lock (&mixed_data->mutex);
g_assert_cmpint (mixed_data->state, ==, 0);
mixed_data->state = 1;
g_mutex_unlock (&mixed_data->mutex);
g_set_error (error, G_IO_ERROR, G_IO_ERROR_CANCELLED, "Sample error");
return GINT_TO_POINTER (1);
}
static void
mixed_async_feedback_func (gpointer retval,
const GError *error,
gpointer user_data)
{
MixedData *mixed_data = user_data;
meta_assert_not_in_thread_impl (mixed_data->thread);
g_assert_true (g_error_matches (error, G_IO_ERROR, G_IO_ERROR_CANCELLED));
g_assert_cmpint (GPOINTER_TO_INT (retval), ==, 1);
g_mutex_lock (&mixed_data->mutex);
g_assert_cmpint (mixed_data->state, ==, 2);
mixed_data->state = 3;
g_mutex_unlock (&mixed_data->mutex);
}
static gpointer
mixed_sync_func (MetaThreadImpl *thread_impl,
gpointer user_data,
GError **error)
{
MixedData *mixed_data = user_data;
meta_assert_in_thread_impl (mixed_data->thread);
g_mutex_lock (&mixed_data->mutex);
g_assert_cmpint (mixed_data->state, ==, 1);
mixed_data->state = 2;
g_mutex_unlock (&mixed_data->mutex);
g_set_error (error, G_IO_ERROR, G_IO_ERROR_WOULD_BLOCK, "Sample error");
return GINT_TO_POINTER (2);
}
static void static void
run_thread_tests (MetaThread *thread) run_thread_tests (MetaThread *thread)
{ {
@ -342,6 +404,7 @@ run_thread_tests (MetaThread *thread)
PipeData pipe_data; PipeData pipe_data;
IdleData idle_data; IdleData idle_data;
AsyncData async_data; AsyncData async_data;
MixedData mixed_data;
meta_assert_not_in_thread_impl (thread); meta_assert_not_in_thread_impl (thread);
@ -432,6 +495,30 @@ run_thread_tests (MetaThread *thread)
g_mutex_unlock (&async_data.mutex); g_mutex_unlock (&async_data.mutex);
g_main_loop_unref (async_data.loop); g_main_loop_unref (async_data.loop);
g_mutex_clear (&async_data.mutex); g_mutex_clear (&async_data.mutex);
/* Async task followed by sync task */
g_debug ("Test mixed async and sync tasks");
mixed_data = (MixedData) { 0 };
g_mutex_init (&mixed_data.mutex);
mixed_data.thread = thread;
g_mutex_lock (&mixed_data.mutex);
meta_thread_post_impl_task (thread, mixed_async_func, &mixed_data,
mixed_async_feedback_func, &mixed_data);
g_assert_cmpint (mixed_data.state, ==, 0);
g_mutex_unlock (&mixed_data.mutex);
retval = meta_thread_run_impl_task_sync (thread, mixed_sync_func, &mixed_data,
&error);
g_mutex_lock (&mixed_data.mutex);
g_assert_cmpint (mixed_data.state, ==, 2);
g_assert_cmpint (GPOINTER_TO_INT (retval), ==, 2);
g_assert_true (g_error_matches (error, G_IO_ERROR, G_IO_ERROR_WOULD_BLOCK));
g_clear_error (&error);
g_mutex_unlock (&mixed_data.mutex);
meta_thread_flush_callbacks (thread);
g_mutex_lock (&mixed_data.mutex);
g_assert_cmpint (mixed_data.state, ==, 3);
g_mutex_unlock (&mixed_data.mutex);
g_mutex_clear (&mixed_data.mutex);
} }
static void static void